Research Question
How does the the proficiency level in Reading and Language skill vary across state for High School Students? How does it differ by students characteristics such as English Learner status, Student with Disability, Low Income students?
Data Source: State Assessments in Reading/Language Arts and Mathematics- School Year 2018-19 EDFacts Data Documentation, U.S. Department of Education, Washington, DC: EDFacts. Retrieved February 2, 2022 from http://www.ed.gov/edfacts
I decided to use map graph to visualize the achievement gap of students with disability, EL students, and Low-income students compared to their peers. This way, audience can compare each state math achievement across all categories as well as able to perceive the intensity of gap with heatmap color for easier interpretation.
The goal of these bar plots is to show achievement gap of students with disability, EL students, and Low-income students compared to their peers. In the previos set of plots, the bar was presented on its own. I decided to add the all students average in grey as the background for easier comparison. However, I want people to be able to compare the difference all at once in one frame.
Research Question
How does the the proficiency level in math vary across state for High School Students? Also, how does it vary across the US regions (i.e Midwest, Northeast, South, and West)?
Data Source: State Assessments in Reading/Language Arts and Mathematics- School Year 2018-19 EDFacts Data Documentation, U.S. Department of Education, Washington, DC: EDFacts. Retrieved February 2, 2022 from http://www.ed.gov/edfacts
The south region has relatively high percentage of students at and above Math proficiency, in contrast, the West region has relatively low percentage of students at and above Math proficiency. There is no clear pattern for Midwest and Northeast regions as there is large variation of Math profiency within these regions.
Another way to display the variation of Math proficiency skill across states is by showing how far the state mean diverge above and below the national mean. I like the simplicity of this map instead of the previous one and chose red color to represent below the average and green color to represent above the average. I think this map is easier to understand for general audience.
This is the initial diverging plot that includes anotated state mean difference relative to national average. However, the number is too small and the information has already displayed through the geom_segment() line. I decided to use the other diverging bar plot.
Research Question
How does the the proficiency level in Reading and Language skill vary across state for High School Students? How does it differ by students characteristics such as English Learner status, Student with Disability, Low Income students?
Data Source: Distric Fiscal documentation 2018 School year 2019 Retrieved February 2, 2022.
On Average, Indiana spent the most on textbook per student at $107, while Hawaii spent the least on textbook per student at $14.
The average spending per students in district level is aggregated at the state level. Since we will calculate the textbook spending and student achievement only in state level, I decided to have to state-level map as the final version.
Initially, we wanted to present overall district spending per student in one large US map. However, we had two problems with the plan. 1. The amount of time to render the plot is too long and 2. Too many information in one map and it might distract our audience from our main goal. We decided to have each state district spending and play around with ggplotly function where audience can zoom in and out easily.